Irregular triangle read by rows: T(n,k) is the number of degree-n permutations without overlaps which furnish k new permutations without overlaps upon the addition of an (n+1)st element, 2 <= k <= 1 + floor(n/2).

A259689

Irregular triangle read by rows: T(n,k) is the number of degree-n permutations without overlaps which furnish k new permutations without overlaps upon the addition of an (n+1)st element, 2 <= k <= 1 + floor(n/2).

Terms

    a(0) =1a(1) =2a(2) =2a(3) =2a(4) =6a(5) =4a(6) =10a(7) =10a(8) =4a(9) =32a(10) =26a(11) =8a(12) =68a(13) =64a(14) =34a(15) =8a(16) =220a(17) =186a(18) =82a(19) =16a(20) =528a(21) =488a(22) =276a(23) =98a(24) =16a(25) =1724a(26) =1484a(27) =744a(28) =226a(29) =32

External references